We are investigating new electrochemical growth mechanisms of the conductive polymer nanotubes and metal nanotubes in cylindrical pores of a template. Using poly(ethylenedioxythiophene) (PEDOT) nanotubes, we have demonstrated the world-first moving-image speed in the electrochromic device with high optical color contrast, which has never been achieved simultaneously before.
Silica nanotubes (SNTs) are an ideal platform for biomedical applications due to their biocompatibility, large surface area to volume ratio, stability, and hollow nanotube void. The established template synthesis method allows for facile control of the nanotube dimensions, and straightforward differential surface modification. In addition to SNTs, we are also investigating the use of polymer and magnetic nanotubes for application in drug delivery, detoxification, and biosensing.